Home / 136,613.31-188,527.37-76,187.85

Finding the Fourth Proportional to 136,613.31, 188,527.37 and 76,187.85

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Solution

The fourth proportional to 136,613.31, 188,527.37 and 76,187.85 is: 105,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,613.31 : 188,527.37 = 76,187.85 : x
  2. Step 2: Convert to fraction form
    136,613.31/188,527.37 = 76,187.85/x
  3. Step 3: Cross multiply
    136,613.31x = 188,527.37 × 76,187.85
  4. Step 4: Simplify right side
    136,613.31x = 14,363,494,605.52
  5. Step 5: Solve for x
    x = 14,363,494,605.52/136,613.31
  6. Step 6: Final answer
    x = 105,139.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.